Segredos de Espiões

I can see where this could be an interesting book, inside characters' heads, or at least the main protagonist's. But the film is WAY too slow in providing motivations: it mostly seems like the son belongs in his father's mental institution - there's no clue WHY he's obsessed with his father's wartime exploits to the point of destroying his own family - the grandson, his son, is entirely justified in his estrangement.

I guess this was supposed to be some kind of "psychological mystery" or thriller ... but it's just flat. I kept waiting for some explanations, some clues to behaviors, but they were withheld so long that one loses interest BECAUSE what IS going on is not sufficiently engaging. The protagonist comes across as just an asshole to his family.